It does not forget where you have left your keys or are unable to lift heavy weights that indicate that you are getting older.
An important sign that your health is taking is actually how upright the penis of a man is or how swollen is a woman's clitoris when people sleep.
Controversial Biohacker Bryan Johnson strives to live forever and a way he does that is by competing with his 19-year-old son to see who has the best nocturnal erections.
Sit exclusively with DailyMail.com, Mr Johnson, who is 47, but the Penile Health of a 22 -year -old, admitted that he spoke about his erections' Kick up some giggles', but nocturnal erections are 'one of the Most important things for everyone of us to know about our body. '
Johnson told this website: 'When I first started measuring [nighttime erections]I didn't know if it was a good idea. Is it lowbrow? Is it like a bit off?
'It appears that – this applies to both men and women – that the nocturnal erections of a man and the nocturnal erections of a woman – the clitoris – forged – is one of the most important biomarkers of everything all over our body.
“So although it starts a bit giggling, it is really one of the most important things for all of us to know about our body and it just doesn't talk about it.”
Johnson said that men who do not have nocturnal erections have a 70 percent greater chance of premature death, which means that the results are following a 2015 study that men with erectile dysfunction have a 70 percent increased risk of early death.

Bryan Johnson compared his nocturnal erections with those of his son (depicted here) to measure his Androage -erection health age

In the morning the Adam sensor offers details about nocturnal erections, including frequency and duration. The details of Mr Johnson (left) and his 18-year-old son (right) are shown above
A lack of or poor quality of erections can indicate circulation and blood stream problems, hormone unbalance or nerve damage, which could indicate countless diseases, such as high blood pressure, diabetes, heart disease or neurological disorders.
Last month, Mr. Johnson tweeted data about his nocturnal erections in addition to data about his son, Talmage's, nocturnal erections that compare the two.
Although Talmage still had two minutes of erections than Mr. Johnson, their Androage – Health and age of their erections – the same at the age of 22 are.
Johnson said, “Children big to be high, to be sturdy and standing upright.”
But he was quickly criticized for publishing such intimate information about his son.
However, Talmage has retweeted his father's post and said, “I am grateful for the way my father raised me.”
Johnson said to Dailymail.com: 'I don't ask my son to do anything. I mean, this is all his own curiosity.
“If you give children this toy, they will play with them, and so I have just given him all these different things with which he can play.”
Mr. Johnson uses the Adam Sensor erection tracker, a compact device with a band that goes around the base of the penis and monitors erections by measuring the penis size during the night.
The Adam sensor records the frequency, duration and 'quality' of each erection and sends the information to an app on the phone of a person who analyzes the data and gives an androage.
The device is available online for around $ 190 (£ 149.00). Because of the big question, the company says that there is currently a waiting list.
There is currently no device to measure female erections that occur when a woman is excited.
When this happens, blood rushes to the erectile tissue that forms the clitoris, so that it is informed of the way in which the penis of a man stands upright.
Johnson continued: 'Nobody spoke about this until I started talking about it. So it's good for the headlines, but it is also really practical for people's lives.
'For example, men who do not have nocturnal erections run a risk of 70 percent greater the risk of premature death. So it is a really important health mark. '
There is research to support Mr. Johnson's claims.
A study from 2015 showed that men with erectile dysfunction have an increased risk of 70 percent on an early death for any cause.
Another study turned out that men with ED up to 2.5 times more likely to develop cardiovascular disease, the most important cause of death worldwide.
Ed can also lead to anxiety, stress, low self -esteem, infertility and relationship problems.

Johnson shows how the Adam sensor works to measure nocturnal erections
It also happens more often as men get older. A 2017 study estimated by the time that a man is in the forty, he has about 40 percent chance of a form of ED and this then increases by around 10 percent per decade.
So by following how healthy his penis is, Mr. Johnson can measure his overall health.
Regardless of the age of a man, the most common cause is a dysfunction with the vascular system of the penis, which can be treated with medicines, injections or penis implants.
In a Valentine's day video on X, Mr. Johnson mentions nocturnal erections for the penis and clitoris and said that prioritizing sleep is one of the most important things to improve nocturnal erections.
He said: 'If you don't sleep well, you will grind or are you not just to prioritize sleep, you're probably weak. Now this is very problematic because it is an indicator of poor health and bad things that are still coming. '
In addition to monitoring his nocturnal erections, Mr. Johnson also undergoes testing his sperm to see how healthy it is, measures blood flow to his weak and upright penis with the help of ultrasound and measures how quickly and strong he can urinate.
He also fills in questionnaires about erectile function and scored a perfect 25 out of 25.

Johnson sat down for an exclusive interview with DailyMail.com to talk about his lifetime routine and desire to live forever
When Mr. Johnson first started measuring his penis health, he maintained erections for about two hours. He then underwent two therapies to improve the quality and duration of his nocturnal erections.
The first was targeted shock golf therapy, which is usually used to accelerate healing in injuries such as ligament tears or sprained bones. It uses energetic sound waves to stimulate healing in damaged tissues.
When applied to the penis, Mr. Johnson said in the video that it has 'rejuvenation effects', but it was a painful process.
Secondly, Mr. Johnson received botox injections in his penis, which can improve penis function by improving blood flow to the penis.
After the treatments, his nocturnal erections went from just over two hours to just over three hours.
Mr. Johnson said: 'Nocturnal Boners are missing the part of your sex education that you never knew. They are really important. '